[whatwg] Video : Slow motion, fast forward effects
maikmerten at googlemail.com
Thu Aug 7 01:28:02 PDT 2008
Chris Double schrieb:
> Given that codecs are often highly optimized for forward playback the
> cost in memory can be excessive to go the other way. Could there be a
> possibility to say 'reverse playback not supported'?
This may be needed anyway, given that with streaming media you can't
reverse playback, even if the codec would allow it easily (which is not
the case for MPEG, VC-1, Theora, Dirac, <your favorite codec here>).
An interesting case would also be how to handle playback speeds smaller
than "1x" in the streaming case, given that you cannot possibly have an
infinite buffer of input data. Streaming mostly forces a playback speed
of "+1x" in all cases.
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